04 Affected products
PAIRS: —
01 RecordSTATE: PUBLISHED
02 Description
CNA: glibcPassing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- 4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- NVD analysis status
- Received. NVD last modified this record on 2026-08-28.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
SCHEMA: 5.2
- Published
- 2026-08-27 19:20Z9 HR AGO
- Last updated
- 2026-08-27 19:26Z9 HR AGO
- Reserved
- 2026-07-30
- Assigning CNA
- glibc
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.9)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weaknesses
- Data version
- 5.2
- Document digest
- 96963123ec25119aa3c525e09dc79a5ca87e4e9a6d52d8ddf7c4eb8593239963
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
The GNU C Libraryglibc0 to < 2.45—